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MCQOPTIONS
This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.
| 751. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage-1 Luminous objects give off their own light, such as the sun and stars. Fireflies and glow-worms are luminous. Non-luminous object do not give off light or glow. Fireflies is |
| A. | a glowing object |
| B. | a deep sea fish |
| C. | both (a) and (b) |
| D. | neither (a) nor (b) |
| Answer» D. neither (a) nor (b) | |
| 752. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage-1 Luminous objects give off their own light, such as the sun and stars. Fireflies and glow-worms are luminous. Non-luminous object do not give off light or glow. Sun is a |
| A. | non-luminous object |
| B. | luminous object |
| C. | transparent object |
| D. | opaque object |
| Answer» C. transparent object | |
| 753. |
Column-I Column-II A. Transparent substance (p) It allows the light to pass through it almost completely B. Opaque substance (q) It emits light of its own C. Luminous object (r) It does not emit light of its own D. Non-luminous object (s) It does not allow light to pass through it |
| A. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| B. | \[A\to (q);B\to (p);C\to (s);D\to (r)\] |
| C. | \[A\to (p);B\to (r);C\to (q);D\to (s)\] |
| D. | \[A\to (p);B\to (s);C\to (q);D\to (r)\] |
| Answer» E. | |
| 754. |
Column I Column II A. Lunar eclipse (p) Has colour of the object B. Solar eclipse (q) Always black C. Image (r) Moon between sun and earth D. Shadow (s) Earth between sun and moon. |
| A. | \[A\to (s);B\to (p);C\to (r);D\to (q)\] |
| B. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| C. | \[A\to (s);B\to (r);C\to (q);D\to (p)\] |
| D. | \[A\to (s);B\to (r);C\to (p);D\to (q)\] |
| Answer» E. | |
| 755. |
Luminous objects |
| A. | emit light during night time |
| B. | emit light during day time |
| C. | emit light of their own during day and night |
| D. | None of the above is correct. |
| Answer» D. None of the above is correct. | |
| 756. |
An object that emits light of its own is |
| A. | a luminous object |
| B. | a non-luminous object |
| C. | a source of light |
| D. | Both (a) and (c) |
| Answer» B. a non-luminous object | |
| 757. |
For the formation of shadow, essential conditions |
| A. | There should be a source of light |
| B. | There should be a screen |
| C. | An opaque substance should be placed between the source of light and screen |
| D. | All of the above |
| Answer» D. All of the above | |
| 758. |
Tube light glass : Semi transparent :: Mirror glass: ______ |
| A. | Non-Luminous |
| B. | Transparent |
| C. | Reflector |
| D. | Opaque |
| Answer» E. | |
| 759. |
A solar cell converts ______ |
| A. | chemical Energy to light energy |
| B. | light energy to electrical energy |
| C. | electrical energy to light energy |
| D. | light energy to chemical energy |
| Answer» C. electrical energy to light energy | |
| 760. |
Which of the following materials is most suitable for a solar electrical cell? |
| A. | Iron |
| B. | Silicon |
| C. | Steel |
| D. | Aluminium |
| Answer» C. Steel | |
| 761. |
Which of these conditions is/are essential for a shadows to be produced? |
| A. | A light source |
| B. | An opaque object |
| C. | A screen/surface |
| D. | All of the above |
| Answer» E. | |
| 762. |
Which tiny particles can be observed in a ray of light entering from a small gap of a window? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Dust |
| D. | Water Vapours |
| Answer» D. Water Vapours | |
| 763. |
Following are some sources of light. Which of them is natural? |
| A. | Moon |
| B. | Flame of candle |
| C. | Bulb |
| D. | Sun |
| Answer» E. | |
| 764. |
Thick black paper is |
| A. | transparent |
| B. | translucent |
| C. | opaque |
| D. | None of these |
| Answer» D. None of these | |
| 765. |
Which of the following will form a shadow similar to that formed by a thin note-book? |
| A. | A rectangular box |
| B. | A circular box |
| C. | Both the above |
| D. | None of these |
| Answer» B. A circular box | |
| 766. |
Does the shadow of an object always provide us correct information about the shape of the object? |
| A. | Yes |
| B. | No |
| C. | Can't say |
| D. | All are incorrect |
| Answer» C. Can't say | |
| 767. |
Which of the following are needed for formation of a shadow? |
| A. | Source of light |
| B. | An opaque object |
| C. | Screen |
| D. | All of these |
| Answer» E. | |
| 768. |
Moon is a |
| A. | luminous body |
| B. | non-luminous body |
| C. | neither luminous nor non-luminious |
| D. | None of the above is correct |
| Answer» C. neither luminous nor non-luminious | |
| 769. |
An image is formed on a screen when |
| A. | a transparent object is placed between the screen and the source of light |
| B. | an opaque object is placed between the screen and the source of light |
| C. | Both the above are correct |
| D. | None of the above is correct |
| Answer» C. Both the above are correct | |
| 770. |
A translucent substance |
| A. | allows most of light to pass through it |
| B. | allows a part of light to pass through it |
| C. | does not allow light to pass through it |
| D. | None of the above is correct |
| Answer» C. does not allow light to pass through it | |
| 771. |
Planets are example of |
| A. | luminous object |
| B. | non-luminous object |
| C. | translucent object |
| D. | transparent object |
| Answer» C. translucent object | |
| 772. |
If an object placed in the path of light allowed almost the whole of the light falling on it to pass through it, then the object is classified as |
| A. | transparent |
| B. | translucent |
| C. | opaque |
| D. | None of these |
| Answer» B. translucent | |
| 773. |
"Speed of light is the same, no matter how it is measured" was first contemplated by |
| A. | A.A. Michelson |
| B. | John Dalton |
| C. | Albert Einstein |
| D. | None of these |
| Answer» D. None of these | |
| 774. |
Which of the following is translucent? |
| A. | Oily paper |
| B. | Aluminium sheet |
| C. | Glass |
| D. | None of these |
| Answer» B. Aluminium sheet | |
| 775. |
Which of the following is a transparent substance? |
| A. | Wooden blackboard |
| B. | Mirror |
| C. | A sheet of glass |
| D. | None of these |
| Answer» D. None of these | |
| 776. |
Which of the following is a non-luminous body? |
| A. | Sun |
| B. | Moon |
| C. | Stars |
| D. | All of these |
| Answer» C. Stars | |
| 777. |
Select the one that is a natural source of light. |
| A. | Lighted fluorescent tube |
| B. | Red hot iron bar |
| C. | Sun |
| D. | Trees |
| Answer» D. Trees | |
| 778. |
Which of the following is/are the example(s) of a light reflector? 1. Fluorescent tube 2. A mirror 3. The moon |
| A. | (1) only |
| B. | (3) only |
| C. | (1) and (2) only |
| D. | (2) and (3) only |
| Answer» E. | |
| 779. |
Look at the picture and answer the question given below: Why is a dark shadow not formed by glass tumbler? |
| A. | The source of light is not a strong source |
| B. | It is not night time |
| C. | The tumbler is made of transparent material |
| D. | All the above are correct |
| Answer» D. All the above are correct | |
| 780. |
If a student stand 3 m in front of a mirror, what is the distance between he and his image? |
| A. | 1.5m |
| B. | 3m |
| C. | 6m |
| D. | 7.5m |
| Answer» D. 7.5m | |
| 781. |
Light is a form of energy produced by a |
| A. | luminous object |
| B. | non-luminous object |
| C. | transparent object |
| D. | opaque object |
| Answer» B. non-luminous object | |
| 782. |
Which of the following are non-luminous bodies? (i) A planet (ii) A star (iii) A metal strip (iv) A burning candle |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | Only (ii) and (iv) |
| Answer» D. Only (ii) and (iv) | |
| 783. |
Why does an opaque object form a shadow when placed in the path of light? |
| A. | Because light gets reflected |
| B. | Because the opaque object does not allow light to pass through it |
| C. | Because the opaque object acts as a source of light |
| D. | Because light is a form of energy |
| Answer» C. Because the opaque object acts as a source of light | |
| 784. |
There is no dark shadow formed by the glass when light is shone on it. This is because |
| A. | It is not night time yet. |
| B. | The light is not strong enough. |
| C. | The glass is a transparent object. |
| D. | The distance between glass and screen is very large. |
| Answer» D. The distance between glass and screen is very large. | |
| 785. |
How does light travel? |
| A. | Rectilinear propagation |
| B. | Random motion |
| C. | Curvilinear motion |
| D. | Circular motion |
| Answer» B. Random motion | |
| 786. |
A girl given in the figure is able to see the dog. Which one of the following is the reason? |
| A. | Light falls on the dog. |
| B. | Light gets reflected from the dog into the girl's eyes. |
| C. | It is dark. |
| D. | Light from the bulb reaches the girl's eyes. |
| Answer» C. It is dark. | |
| 787. |
A plane mirror reflects a pencil of light to form a real image. Then the pencil of light incident on the mirror is |
| A. | Parallel |
| B. | Convergent |
| C. | Divergent |
| D. | None of these |
| Answer» C. Divergent | |
| 788. |
Identify translucent objects given in the box. (i) Ground glass (ii) Ice (iii) Wood |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | All the three |
| Answer» B. Only (ii) and (iii) | |
| 789. |
Which of the following factors affect the image produced by a pinhole camera? (i) Enlarging the size of the pinhole (ii) Increasing the distance between the screen and the pinhole camera. (iii) Increasing the distances between the object and the pinhole |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 790. |
Which of the following statements about light is correct? |
| A. | A pinhole camera can take pictures of moving objects. |
| B. | The image formed on the screen of a pin hole camera is erect. |
| C. | Light rays incident on a mirror can be reflected. |
| D. | Opaque objects emit light of their own. |
| Answer» D. Opaque objects emit light of their own. | |
| 791. |
Observe the figure of an animal with its shadow. Which of the following is the position of the sun with respect to the given shadow? |
| A. | P |
| B. | S |
| C. | R |
| D. | Q |
| Answer» E. | |
| 792. |
Which of the following emits light? |
| A. | The earth |
| B. | A television screen |
| C. | A shadow |
| D. | A table |
| Answer» C. A shadow | |
| 793. |
The length of the shadow of a tree will keep changing with respect to |
| A. | the sun. |
| B. | a lamp. |
| C. | a distant star. |
| D. | a torch. |
| Answer» B. a lamp. | |
| 794. |
Which of the following objects does NOT allow light to pass through it? |
| A. | A mirror |
| B. | A glass bottle |
| C. | A piece of tracing paper |
| D. | A piece of clear plastic paper |
| Answer» B. A glass bottle | |
| 795. |
The shape of a shadow depends on (i) The shape of the object (ii) The position of the source. (iii) The size of the source of light. |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | All the three |
| Answer» E. | |
| 796. |
An artificial source of light is |
| A. | the sun. |
| B. | a firefly. |
| C. | the star. |
| D. | an electric bulb. |
| Answer» E. | |
| 797. |
Which of these materials can cast a shadow? |
| A. | A clear glass |
| B. | A clean cellophane paper |
| C. | Clear water |
| D. | A piece of wood |
| Answer» E. | |
| 798. |
Rahul places a candle in front of three cardboards each with a hole on them and observes on the other side. What inference does he make from the given experiment? |
| A. | Light rays are very thin. |
| B. | Light rays travel in straight lines. |
| C. | The eye can only see a luminous body. |
| D. | A beam of light is made up of a lot of light rays. |
| Answer» C. The eye can only see a luminous body. | |
| 799. |
A girl is 4 m away from the plane mirror. If she moves few steps closer to the mirror, what will happen to the image size in the mirror? |
| A. | The size of image will decrease. |
| B. | The size of image will increase. |
| C. | The size of image will be the same. |
| D. | Cannot say. |
| Answer» D. Cannot say. | |
| 800. |
Which of the following absorbs light the most? |
| A. | A mirror |
| B. | A piece of white paper |
| C. | A black wallet |
| D. | A green leaf |
| Answer» D. A green leaf | |